Most Active Speakers 2025
Sessionize proudly presents the list of the most active speakers in the year 2025!
Markus and his teams have been working on Java IDE and database tools, frameworks as well as on various open-source projects for 20+ years. Markus is the CEO and founder of Cyrock.AI, Inc. which is the company behind the Eclipse open-source projects ... Show more
Martin Catherall is a Data Architect working on Microsoft Data Platform technologies. He is currently based in Brisbane, Australia. Martin’s career has expanded from the world of SQL Server Administration and T-SQL development to encompass data en... Show more
Spyros has 20 years of experience in the security world. Since the beginning of his career he has been an avid supporter and contributor of open source software and an OWASP volunteer. Currently he is interested in the harmonization of security tools... Show more
Lizzie serves developers in the Bay Area and beyond on Cloudflare's developer relations team and holds a Bachelor's degree in Computer Science from Bryn Mawr. She likes JavaScript, Python, and working with AI. When not organizing or attending hackath... Show more
I have spent the last 30 years spent working in the technology industry, and have over 20 years experience working with open source. I help customers solve business problems with open source technologies and cloud. I am a Developer Advocate for open ... Show more
Consultora y formadora de BI. Microsoft Data Platform MVP. Data Analyst Associate. Licenciada en Matemáticas. Máster en informática aplicada a la toma de decisiones. Show more
Lin is the Head of Open Source at Solo.io, co-chair of KubeCon + CloudNatibeCon 2026. She actively contributes to AAIF and CNCF projects. She is the author of “Sidecar-less Istio Explained” and “AI Agents in Kubernetes”, and holds more than 200 paten... Show more
Arend-Jan Kauffmann is CTO at Lumos 365 Ltd., a UK-based partner with a Business Central solution for the energy sector. With over 20 years of experience with Microsoft Dynamics NAV / Business Central and 30 years of experience in the IT industry,... Show more
Reza Rad is a Microsoft Regional Director, an Author, Trainer, Speaker, and Consultant. He has a BSc in Computer engineering; he has more than 20 years of experience in data analysis, BI, databases, programming, and development mostly on Microsoft te... Show more
With 18+ years of experience, I help organisations transform collaboration for the modern workplace. Combining deep technical expertise with strong business insight, I bridge the gap between technological wonders and decision-makers; delivering strat... Show more
Vinit is a seasoned software engineer with a demonstrated history of building on-premise and cloud-native distributed systems at scale. Currently, Vinit serves as a Lead Software Engineer at DocuSign, contributing to the Docusign's Storage team. With... Show more
Hi! I'm Toon Vanhoutte, Azure Solution Architect and Microsoft Azure MVP. My duty is to design and deliver reliable, secure and scalable applications in the Azure cloud. I'm not scared to take up big challenges and to dive into development mode. Int... Show more
Alexander Klein is a senior Business Intelligence consultant with more than 20 years of experience. He focuses on Business Intelligence and Data Warehouse projects with Microsoft technologies like SQL Server, Power BI, Azure ML or Cognitive Services.... Show more
I'm a passionate professional about business, entrepreneurship, technology, continue improving of human and technical skills to me and teams that I worked. I'm acquired experience and knowledge in differents roles and practices that I like share and... Show more
Hey! You’ve reached Sofia — I turn Azure, Power Platform, and Dynamics 365 into your business’s superhero cape. Sorry I missed your call; leave a message and I’ll architect your rescue plan ASAP! Show more
Ob Intranet, Mitarbeiter-App oder Kommunikations- und Kollaborationsplattformen - Artur hat immer die richtige Lösung für dich! Show more
Eli has been in tech since being released back into the wild from studying maths at university 9 years ago. They've spent their time working in industries ranging from telecoms to biotech to analog circuit design to developer advocacy, continually ge... Show more
Mary entered the Dynamics community in 2018 after being an AX super user for 3 years. Mary has been helping lead SMB's for 15+ years across various industries including construction, manufacturing, food & beverage, retail, and cosmetics. After att... Show more
With a lifelong passion for the weirdness of the internet and a day job as a development lead for whoever hired him, Lemon spends his professional time making websites for money and his free time making websites for no money. He's created a number... Show more
Niels is a forward-thinking Software/AI Architect at Derivco, spearheading the development of innovative, AI-driven products that push the boundaries of iGaming technology. A pivotal figure in Derivco's AI initiatives, he played a key role in archite... Show more
Rafik MEKKI Senior Agile Coach & Trainer Leadership Catalyst & Speaker Creator & Co-Writer Of Infinity Guide Show more
Rajesh worked as data architect, data modeler and data analyst at global firms working on technical projects that generated huge revenue. He holds master's in computer science and bachelor's in electrical and electronics engineering. Show more
With over 20 years in accounting, ERP systems, and Microsoft Dynamics, Kristen Hosman created Mount Evans Consulting to create accounting systems that fit each small business perfectly. Kristen is a schooled accountant with a diverse background o... Show more
Eric “waldo” Wauters Eric is one of the founding partners of iFacto Business Solutions and Dynex bv. With his 21 years of technical expertise, he is an everyday inspiration to its development teams. As development manager he continually act... Show more
Based in Zürich, Switzerland I have been working as a BI consultant using the Microsoft Data platfrom since 10 years. Covering all aspects of the data journey from data engineering to data visualization. A big passion lately has been the new world... Show more
My name is Axel and I'm from Argentina, where I live with my dog child Sansa. Love playing with her (and any dog), go for a walk and grab a coffee or have mate (argentinian drink :D ) in some park and read. Also series, films, friends, tech. Oh almo... Show more
Brenna Buuck is the subject matter expert at MinIO for databases and data lakehouses. A data engineer turned developer evangelist, she is passionate about coding, data, and learning. She endeavors to inspire and educate other developers about the lat... Show more
Kamal Shree
Senior Developer Advocate @Microsoft, Google Developer Expert, Youtuber(Whatsupcoders), Women Techmakers Ambassador!
Senior Developer Advocate @Microsoft, Google Developer Expert in Flutter & Dart with 14 years of experience in Web Technologies, Android, Flutter, HarmonyOS and Microsoft M365. I have worked for multinational firms in India, the Netherlands, and the ... Show more
Marco is a business intelligence consultant and mentor. He wrote several books about Power BI, Analysis Service, and Power Pivot. He also regularly write articles and white papers that are available on sqlbi.com. Marco is a Microsoft MVP and an SSAS ... Show more
Wade is a CPA who brings 20 years of financial expertise and business management experience to U.S. Transactions Corp. He was previously with Ernst & Young in San Francisco and later PriceWaterhouseCoopers in Stuttgart, Germany where he was senior ... Show more
Please note that Sessionize is not responsible for the accuracy or validity of the data provided by speakers.
Most Active Speakers 2025
Every year, we put together a list of the most active speakers. This list features the top 3% of speakers who have participated in events using Sessionize during the 2025.
The 3% is calculated from the pool of all speakers that have at least one accepted session in year 2025. We don't include inactive speakers or speakers that had no accepted sessions during the year. There are around 39,000 unique accepted speakers this year, the 3% is 1163. Not all of them have their speaker profiles set as public, and we respect that, so the list doesn't show all of them.
The calculation is based on the number of accepted events, that's the main criteria, but to get more refined results we also look at things like multiple sessions per event, sharing a session with a co-speaker and how big the event is. Number of submissions and declined sessions don't affect the list.
Please note that the count of events and sessions in this list does not represent the number of events and sessions from the year 2025. Instead, it shows the number of events and sessions featured on the speaker's public speaker profile; these numbers have nothing to do with the award itself.